Bank-screen-lighting device



Dec. 18,1928.

P. M. HOTCHKIN BANK SCREEN LIGHTING DEVICE Filed Oct. 16, 1925 4 Sheets-Sheet 1 Dec. 18, 1928. 1,695,283

P. M. HOTCHKIN BANK SCREEN LIGHTING DEVICE Filed 001.. 16, 1925 4 Sheets-Sheet 2 [Tec- 18,1928.

4 sheets-sheet Filed Oct. 16, 1925 W R r a M g 2 g M? P M Dec. 18, 1928.

P. M. HOTCHKIN BANK SCREEN LIGHTING DEVICE 4 Sheets-Sheet 4 Filed Oct. 16. 1925 4 [na e/275% PauZ 1 1/70 c/dzkz, 57 G UM I Patented Dec. 18, 192 8.

, UNITED STATES PAUL M. HOTCHKIN, OF CHICAGO, ILLINOIS.

BANK-SCREEN-LIGHTING DEVICE.

Application filedfictofaer 16, 1825. serial Ito. 62.701.

The present invention relates to lighting fixtures, and is particularly concerned with fixtures of the elongated easing type used banking institutions for the purpose illuminating the desks in the cages.

The principal object of the invention to provide an improved lighting fixture the type described which ispleasing in appearance, is light, strong and durable in construction, is inexpensive to manufacture, and may be readily assembled in singie or multiple unit lengths from a number of simple interfitting parts.

Another object is to provide such a; fixture wherein the parts are 1 shaped and brought together in ways which afford convenient access to all of those points where adjustments, repairs or replacements may at times be found necessary.

Still another object is to provide such a fixture which may be made up in either curved or straight form without requiring the employment of specially designed interior framework for the curved form.

Other ob ects and advantages will be evident to those skilled in the art upon a" full comprehension of the construction of the fixture. I

In order that the invention may be readily 39 understood, one preferred structural embodiment 01" the same is illustrated in the accompanying drawings, and is hereinafter described. It is to be understood how ever, that such particular embodiment is presented merely for the purpose or" exemplification, and is not. intended to in any way limit by its structural details the comprehensive scope of the invention j as defined in the appended claims.

In the drawings: Fig. 1 is a side view of a fixture constructed in accordance with the invention;

Fig. 2 is a top view of the fixture; Fig. 8 is a bottom view of the same; i Fig. 4 is a vertical section taken. on the line 44 of Fig. 2;

Fig. 5 is a vertical section taken on the line 55 of Fig. 2; g

Fig. 6 is a vertical section taken on the line 6-6 of Fig. 2; I p Fig. 7 is a perspective view of one of the members for retaining the ends of the wirein the openings in the wiring boxes; Fig. 8 is a perspective view of. one of the members for sealing the unused openings in the wiring boxes;

Fig. 9 is a vertical section taken on the line '99 otFig. 2;

Fig. 10 is a vertical section taken on theline 1() 10 of Fig. 9; v

i Fig. 11 is a top view of one endof the fixture, with the cover removed, showing in horizontal section the portions of the wiring boxes which connect with the wireways; i

Fig. 12 is a horizontal section through the end wiring box shown in Fig. 11, taken on the line 1 212 of Fig. .5; p Fig. 13 is an end view of'an. adjustable socket for inclusion inthe fixture I Fig. 14 isv a top viewof thesocket; V 15 is a side view of the same, showing in vertical section the adjacent portions of the wiring box with which the socket is associated;

Fig. 16isa vertical section through one of the direct-indirect reflectors in the fixture;

Fig. 17 is a vertical section taken on the line 17 17 of Fig. 16; and i Fig. 18 is a top view of a portion of the fixture when produced in a curved form, the portion of the top closure over thewiring box being removed to showv the way in which the lamp socket is adjusted in order. to position the center of the lamp properly with respect to the reflector. The fixture illustrated in the drawings consists of an elongated casinglO .which'is provided interiorly with end 'trame'menn bers 11 and intermediate frame members 12. Tl casing is divided by the members 12 into separate compartments 13," and electric lamps ltare arranged in the com partments in sockets 15 provided adjacent the inner faces of the end members 11 and the opposite faces of theintermediate members 12. i i

The front and rear sides 16 of the casing are sheet metal panels which are embossed, as shown in Figs. 5 and 6, to form ornate upper and lower mouldings 1 7 on the outside of the casin The upper mouldings terminate in inwardly extending flanges 18 which support; the top. closures of the compartments, and the lower mouldings terminate in upwardly extending fianges19 which support the bottom closures.

The several compartments 13 of the casf above which the fixture is mounted, the

character of the illumination depending upon the top and bottom closures used for the compartments and the arrangement therein of the reflectors with relation to the lamps. The con'ipartmentshown in the drawings at the right in Figs. 1 to inclusire is equipped for direct illumination of the working plane below the fixture, and has, for its top closure, an imperiorate sheet metal panel 20, and, for its bottom closure, atranslucent glass panel 21, whereby the rays from the lamps in the compartn'ient are cast downwardly through the bottom of the casing. The compartment shown the left is equipped for indirect illumination, and has, for its top closure, two sheet netal rims 22 in which are supported the upper edges of two upwardly facing reflectors 23, and, tor its bottom closure, a sheet metal panel 24, whereby the rays from the lamps are cast upwardly through the top of the casing. The compartment shown in the middle is equipped for both direct and indirect illumination, and has, for its top closure, sheet metal rims in whicn are supported the upper edges of two upwardly facing reflectors 26 having translucent central portions 27, and, for its bottom closure, a translucent glass panel 28. It is to be understood that the particular combination of lighting efi'ectsgiven by the fiXiIlll'G is one which is presented merely for the purpose of exemplification, as quite obviously all or any number of the compartments may be made up in such a way as to furnish the same kind of illumination.

The panel 20 and the rims 22 and 25, which constitute the top closures for the compartments, are seated on the flanges 18 of the side panels, and are clamped in position by the overlapping margins of cover plates 29 which are screwed down u n the upper portions of the framemoinbe- 11 and 12. The ends of the rims 22 and 25 which are not secured by the plates 29 are clamped in position, as shown in Figspl and 9, by plates 30 which are screwed to cross strips 31 positioned interiorly of the casing with their ends under the flanges 18 or" the side panels 16.

Each of the end frame members 11 consists of a transversely disposed rectangular frame which has in the upper portion thereof an upwardly open wiring box 32, as shown in Figs. 5, 11 and 12. The outer face of the member 11 is closed in order to form an end cap for the casing, and such ap ornamented marginally with both vertical and horizontal mouldings and is provided inwardly of the mouldings with vertical side grooves 34 which receive the ends of the side panels 16. The sides 35 oi the member hold the side panels in properly spaced relation, and the bottou'i ot the member supports one end of the adjacent glass panel 21 or other bottom 4:2, and repositioned nearer one e through the apertures into the box.

side panels 16 trom the groov means oit l held apainst a Siin the menners 11 which tram l "as 33 and he JR 1: H I, alt/.115 Oi inc morndi T1 I ,7 01' A is wiring bed on in earn or traine members 11 supports the lamp socket 1o troin a generail p 16A 90 T1 7.1 r a as 1 o. Jew .1. ew 14 (11 u UL) W 11]..11 lo oat/Lei cu bin, .iJLllwl .LLMLG ot the box over an aperture their 1, and ?5 the wires trom the socket ex id "C uu'h the aperture into the box. 'he p is held in position by screws -10 in the box which pass through liormontahv elongated slots in the plate, the purpose the el 80 tion beine; to permit the plate be ad horizontally in correcting al gnincm of the center of the lampwith resoect to sociated reflector. It or fi-Cljdii are required, the screws &0 may drawn-from the apertures in which t shown and ins ed in other 3 apertures 11. ihe so; attached to the plate 38 by means oi plate than the other, whereby, desired to shift the position ot the c the lamp vertically relative to the r. the plate 38 need merely be rever -Josition on the box 32-.

The intermediate frame members 12 are somewhat similar to the end members 11 in that each consists of a transversely disposed. rectangular frame which has in tie upper portion thereof an upwardly open wii box 13, as shown in Figs. 6 and sides .ll of the member hold the side pane 16 in properly spaced relation, and the bot tom oi the member supports one end ot the adjacent glass panel 21-or otl'ier bottom closure. The bottom 15, which in the nature of a mullion, is provided with a me 'al rib is, as shown in 4:, and the adjacent edges of the panel 21 or other closure are positioned against such rib. The side panels 16 are held against the sides n of the men her 12 by having the lower mouldings 1T oi? the panels hooked about corner pieces 4:? on the member, and by having removable plates 18 hooked into the upper mouldings 1? a d. heldagainst the member by screws 49. The member 12 is provided with "l -shaped slots for the reception of the screws 4:9, ti slots 50 are eloi gated longitudinal "l therein. and the wires for the soclret lie socket supporting plates 51 are adjust-ably secured to the ten 43 in substantially the same manner as the plate 38 is secured to the be of one of the end frame members 11'.

The wires for supplying the several lamps l l-with electric current are carried from one wiring box to another through s: tunetal wireways 53 of shallow channel form; li aclrof the wireways 53 is disposed with its open side against one of the side panels 16, asshown in Figs. 5 to 12 inclusive, and h its ends 5% in alignment with corrt-ispondingly shaped-openings 55 in the faces of the wiring boxes '32 and 43. The openings 55 are in direct communication with he interiors of the wiring boxes. The wirevrays are held against the sideipanels 16 n alignment with the openings 55 in the frame members by means of retaining plates 56 which slide into guide grooves 57 located in the facesof the frame members at points above and below-the wireways. The plates 56, when properly positioned, bear vith the intermediate portions 58 of the same against the intermediate portions of the ends of the 'wireways. -Th'c plates are provided with deformable tongues 59, and, when the plates 21c have been positioned against the wire ways, the ton ues 59 maybe bent abruptly into the wiring boxes, as shown in Figs. 11 and 12, whereby to prevent accidental disement of such plates. It is, of course, necessary to use one wireway between any two frame members,but, since the end members 11 are preferably identical at both of the casing, such members must necarily be provided with wireway openings on both sides of the inner faces of the same if the wireways are to extend throughc the casing along but one side thereof.

(Inc of the openings 55 in each of the end members 11 is therefore not used, and such opening may be closed oil from the adjoin-' ing compartment 1 5 by means of a plate 60 which is inserted in grooves roe sealing 57 and i in posit J11 substantially the same nor as the retaining plates 56. The sealolates 60 differ essentially from the re ng plates, however, in that they are provided with abrupt flanges 61 which extendacross and com 'iletely close the associated opening 55.

Lighting tin ures such as those herein described are sometimes required in rather and the longer tlxturescannot be sin ped conv niently in assembled form. In order to provide a knockdown construction for convenience in both manufacture and shipping, the side panels 16 may be in the form of two medially abutting panels 62 and as snown in Figs. 9 and 10, and such panels nuiy be rigidly spliced together by means of st (i l which fit into the recesses resulting from the formation of the upper and lower mouldings 17. The strips are provided at intervals with longitudinal slot-s c5, and bolts ('36 extend through the 'mouldings 17 and strips (i l at those points to clamp the same rigidly together. The jointmay be hidden as well as additionally reinforced by means of two exterior side clamping strips \5? which are secured firmly against the sides of the casing by the middle set of bolts 66. This arrangement provides an extremely simple, yet strong and easily assembled joint, and permits splicing to be effected with a high degree of pern'iauency.

it is sometin'ies necessary that the fixture be formed up in curved as distinguished from strai ht form in order. to meet special requirements. The fixture ofthe invention is particularly well adapted this, as it is only necessary to impart the desired curvature to the side panels 16, and to cut the removable top and bottom closures to the required shape. No change is necessary in the end or intermediate frame memberslll and 12, as they will not-interfere with. the. curvature of the side panels, but it is desirable to substitute, in place of each of the sockets 15 and soclret supporting plates 38 and 5i, an interchangeable swivel socket and plate such as shown in Figs. 13, 1%, 15, and

18, so that the center of the lamp 15 may be swung into position in alignment with the center of the associated reflector. The swivel socket 657 referred to is pivoted at 68 to the supporting plate 69, and is provided with a ball-shaped rear portion 70 which turns about the axis 68"within a snugly tit ting aperture 71 in the plate The aper ture 71 of course covers a larger aperture in the face of the associated wiring box.

The plate 69, like the platesBS and 51, may

be reversed in positionupon the wiring box in order to vary in a vertical plane the position of the center of the lamp, and is also adjustable laterally on the box whereby to permitit to be shifted into such an offset position for instance as that shown in Fig. 18, as a result of which shifting the lamp 15 is brought into perfect alignment with the associated reflector.

The usual wire carrying conduit prefer-' ass described, coinwiring boxes v between the boxes,

and retaining members slidablypositionetl in grooves in the boxes and bearing transversely against the wireway near the ends iii) thereof for holding the same in ali nmentwith openings in the boxes.

ii fixture oi: the class described, comprising an elongated casing, wiring boxes in the casing, a wireway between the boxes, retaining members slidably positioned in grooves in the boxes and bearing transverse-- i against the wireway near the ends thereoi' for holding the same in alignment with openi s in the boxes, and tongues on. the retaining members deformable to hold the members against displa ement beine positioned in the grooves againstthe wriway.

3. A fixture of the class described, coinan elongated easing two interch? geable end n having wireway openings at both sides oi the casing, one or more intermediate wiring boxes in the casing having wirewav openings at but one side of the casing, ways extending between of the vnmg boxes, means for holding the wirewzr alignment with the wireway openings in boxes at one side of the casing, and meal. for sealing the unused openings in the end boxes at the other side the C851.

at. A fixture of the class described, comprising an elongated casing, two interchangeable end wiring boxes in the casing having wirewayopenings and slide positioning grooves at both sides of the casii one or more intermediate wiring boxes in the casing having wireway openings and slide positioning grooves but one side of the casing, wireways extending between all of the wiring boxes, removable slides engageable in the grooves for holding the wireways in alignment with the wireway openings in the boxes at one side of the ca, ing, and other slides engageable in the grooves for sealing the unused openings in the end boxes at the other side of the casing.

5. A fixture of the class described, comprising an elongated casing, wiring boxes so arranged in the casing as to form therebetween lamp chambers, means for closing the tops of the chambers, and means overla ping the chamber closing m ans for closin the tops of the boxes 6. A fixture of the class described, comprising an elongated casing having two sheet metal side panels, transversely disposed frame members against the sides of which the side panels are positionec, means on one of the frame members for interlocking with the lower portions of the side panels, anchor members for interlocking with the upper portions 01": the side panels, and screw conncetions between the anchor members and the frame members operable to hold. the side panels of the casing in fixed position relative to the frame member.

7. A fixture of the class described, comprising an elongated casing having two sheet 9 inn boxes in tne casing metal side panels, transversely disposed frame members against the sides of which t o side panels are positioned, means on one of the frame members for interlocking with the lower portions of the side panels, anchor members for interlocking with the upper portions of the side panels, and screw con nections between the anchor members and the frame member operable to hold the side panels oi the casing in fixed position relative to the frame member, said anchor members being shiftable longitudinally of the side panels, and said screw connections being shittable longitudinally of the frame member.

v8. A fixture of the class described, comprising an elongated casing, members so arranged in the casing as to form compartents therebetween, sockets pivotally associated with the members for supporting lamps in the compartments, and means for permitting the sockets to be pivotally associated with the members in different positions laterally of the members.

A fixture of the class described, comprising an elongated casing, members so ared in the casing as to form compartments therebetween, plates associated with the members at the ends of the compartments, screws passing through top and bottom apertures inthe plates for detachably securing the plates to the members, and lamp socket-s carried by the plates at unequal distances from the top and bottom apertures in order to effect a variation in the vertical positions of the sockets upon rcversal of the plates relative to the members.

10. it fixture of the class described, eomprising an elongated casing, members so arranged in the casing as to form compartments therebetween, plates associated with the members at the ends of the compartments, screws passing through horizontally elognated slots in the plates for ,detaehably securing the plates to the members in different positions laterally of the members, and lamp sockets carried by the plates.

11. A fixture of the class described, comprising an elongated casing having two sheet metal side panels which are each transversely divided, and means for splicing the sections of each side panel together, consisting of two longitudinally extending strips spanning the sections of the panel and positioned against the inside of the same adjacent the top and bottom margins, a transversely extending strip overlying the division between the sections and positioned against the outside of the panel, and means for clamping all of the strips fixedly against the sections.

12 A fixture of the class described, comprising an elongated casing having two sheet metal side panels which are longitudinally embossed to provide exterior mouldings and are each transversely divided, and means H ll for splicing the sections of each side panel together, consisting of two longitudinally extending strips removably set into the grooves formed on the inside of the sections bythe mouldings, and means for clamping the strips fixedly against the sections.

13. A fixture of the class described, comprising an elongated casing of curved form having two sheet metal side panels, transversely disposed frame members against the sides of which the curved side panels are positioned, means for attaching the side panels to the frame members, sockets associated" rith the frame members for holding lamps in the casing between the frame members, reflectors carried by'the casing between the frame members, and connections between the sockets and the frame members for permitting the sockets to'be shifted into positions wherein the lamps held thereby will be in vertical alignment with the releetct-z's spective of the curvature of the casing.

14. A lighting fixture. of the class described, comprising an elongated casing, a

lamp in the casing adapted to cast light rays lucent central zone parallel to one face of the casing through which certain of the light rays from the lamp will pass and a curved opaque surrounding zone symmetrical with respect to the opposite face from which other of the light rays will be reflected.

15, A fixture of the class described, comprisir 3 an elongated casing, wiring boxes so between lamp chambers, elongated panels eX- tending between the boxes for closing the tops of thechambers, and small plates overlapping the ends of the panels for closing the raged in the casing as to form there-' tops of the boxes and holding the panels in position.

, In testimony whereof I have signed my name.

PAUL M. HOTCHKIN.

hereunto 

